Helle Steinbit 115 Fishing Filet Knife. The Steinbit is a fillet knife with a thin flexible blade of non-laminated stainless steel (Sandvik 12C27). The nicely curved wood handle feels good in the hand. It is supplied with a Nordic style leather sheath. SELECT SPECS: Blade length: 6" Overall length: 10.75" Country of Origin: Norway The natural materials used in the production of this knife will vary in appearance from knife to knife.